Setting method of road section information display board based on discrete model

Abstract

In order to overcome the problem that the current information display board information is hard to effectively control the traffic flow density and travelling speed on a highway, the invention provides a setting method of a road section information display board based on a discrete model, the method comprises: defining a road section condition controllability discriminant according to a macro traffic flow discrete model, adjusting a control scheme of vehicles at a ramp entry and a ramp exit, indicating the vehicle travelling speed to change the equivalent speed in the road section condition controllability discriminant through the information display board, so that the density and speed predicted by the road section condition controllability discriminant meet density and speed limiting conditions under an actual road section traffic condition, and the information display board displays the control scheme of vehicles at the ramp entry and the ramp exit and a required vehicle travelling speed.

Description

technical field [0001] The invention relates to a method for setting a road traffic information display board, in particular to a method for setting a road section information display board based on a discrete model. Background technique [0002] Transportation is extremely important to the development of the national economy and has always been the key construction content of the country. In recent years, my country's highways, railways, water transport, urban transportation and civil aviation have all developed by leaps and bounds, and a transportation network framework consisting of five modes of transportation, railways, highways, water transport, air transport and pipelines, has initially formed. Many high-grade and expressways have been laid, initially forming a road network radiating across the country composed of national highways, high-grade highways, and local highways. At the same time, urban road construction has also developed greatly. The construction of urban...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the existing information display board information is difficult to effectively control the traffic flow density and driving speed of the expressway, the present invention provides a method for setting the road section information display board based on the discrete model. The model defines the controllability discriminant of the road section condition, adjusts the ramp exit and entrance vehicle control scheme, and the information display board indicates the vehicle speed to change the sum and equivalent speed in the road section condition controllability discriminant formula, so that under the actual traffic conditions of the road section, The density and speed predicted by the road section condition controllability discriminant meet the required density and speed limit conditions, and the information display board information shows the ramp exit and entrance vehicle control scheme and the required vehicle speed

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